I think she would have made a good president, period, and not only in comparison to a bumbling moron like Trump. She has impressive policy chops, extensive experience, and is decisive. Whatever the Democratic party's internal politics may have been, I see no reason why Democrats and other centrists would not have come together on election day and voted for her. Some smart people here may disagree, but that's my opinion and I stand by it.
Sorry to say, but anyone who voted for Trump or stayed at home deserved what they got: a Trumpster fire in the White House.